A user reports that their desktop computer emits a loud grinding noise shortly after being powered on. While opening the case for visual inspection, you don't notice any loose items that could interfere with moving parts. What is the most likely component to be investigated first to resolve this issue?
Check the optical drive while it is reading a disc
Check the hard drive for physical damage or failure symptoms
A grinding noise in a desktop computer is often related to moving parts within the system. The most common culprits are fans and hard drives, as these components have mechanical parts that spin at high speeds. In this case, the hard drive is more likely because fans typically produce a consistent humming or buzzing noise when they fail, rather than a grinding sound, which is more characteristic of a failing hard drive with moving platters and read/write heads. Also, a fan issue would likely have been visibly noticed during the inspection.
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